TY  - BOOK
AU  - Heywood,Ian
AU  - Cornelius, Sarah 
AU  - Carver, Steven 
TI  - An introduction to geographical information system: by Ian Heywood, Sarah Cornelius and Steven Carver
SN  - 9788131731932
U1  - 910.285 21
PY  - 2009///
CY  - Noida
PB  - Pearson
KW  - GEOGRAPHICAL INFORMATION SYSTEM
N1  - includes bibliography, glassary and index
ER  -